railing

A structure made of a rail, often connecting a series of upright members, that is used as a guard or barrier or for support, as on a balcony or next to a staircase.

The rail of such a structure.

Rails considered as a group.

Rails collectively; a combination of rails; a construction in which rails form an important part.

Hence Any openwork construction used as a barrier, parapet, or the like, primarily of wood, but also of iron bars, wire, etc.

Expressing reproach; insulting.

A barrier made of a rail or of rails, together with vertical supports. The typical railing in the interior of structures or on porches has a horizontal rail near waist height, and multiple vertical supports. Its function is usually to provide a safety barrier at the edge of a verticle drop to prevent falls.

Rails in general; also, material for making rails.

A fence or barrier consisting of one or more horizontal rails and vertical supports.